Boonville Engineering design and materials ordinance (Appendix C, Section 7.3-31)

A. Design loads. The following provisions shall apply to design loads.

1. Wind. The effect of special local wind pressures shall be thoroughly considered in the design; but the wind load shall not be assumed less than 30 pounds per square foot

(psf) of net exposed area.

2. Earthquake. Signs adequately designed to withstanding wind pressures shall generally be considered capable of withstanding earthquake shocks, and related forces as provided in Sections 718.0 and 719.0 of the BOCA Basic Building Code.

B. Construction. All signs, including their supporting structure, foundation and methods of attachment, shall be designed and constructed in conformity to the provisions for materials, loads and stresses of Articles 7 and 8 of the BOCA Basic Building Code and the requirements of this ordinance.

1. All permanent signs, sign structures, and nonstructural trim shall be constructed of approved combustible or noncombustible materials.

2. Signs along all streets and boundaries shall not interfere with line of sight within 20 feet of the point of intersection of pavement of:

(a) A vehicular accessway or driveway and a street.

(b) A vehicular accessway or driveway and a sidewalk.

(c) Two or more vehicular accessways or driveways.

No sign which obstructs sight lines at elevations between two feet and eight feet above roadways shall be located on any corner lot within the triangular area formed by the intersection of the roadway center lines, connecting them at points 70 feet from their point of intersection for roads of collector category or less and 120 feet for aerials. 3. Obstruction of egress, openings, ventilation. A sign shall not be erected, constructed or maintained so as to obstruct any fire escape, window, door, or other opening; or so as to prevent free passage from one part of the roof to any other part thereof. A sign shall not be attached in any form, shape or manner to a fire escape, or shall not be so placed as to interfere with an opening which is required for legal ventilation. (Reference Articles 5 and 6 of BOCA Code)

4. Letters, figures, characters or representations in cutout or irregular form which are maintained in conjunction with, attached to

or superimposed upon any sign shall be safely and securely built or attached to the sign structure.

5. Illuminated signs. Illuminated signs produced in quantity (other than signs custombuilt for specific locations) shall be constructed in accordance with the "Standards for Electric Signs (U.L.48) of Underwriters Laboratories, Inc." and bear the label of the Underwriters Laboratories, Inc.

6. Electrical signs. All electrical signs, either temporary or permanent, shall be connected to permanent electrical service installed according to the requirements of the National Electrical Code, 1990 Edition. All wiring for newly constructed detached signs shall be underground, unless this is determined to be prohibited by the Building Inspector.